1 files changed, 389 insertions, 118 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c b/drivers/gpu/drm/nouveau/nouveau_abi16.c
index b06cdac8f3a2..a3ba07fc48a0 100644
--- a/drivers/gpu/drm/nouveau/nouveau_abi16.c
+++ b/drivers/gpu/drm/nouveau/nouveau_abi16.c
@@ -27,15 +27,16 @@
 #include <nvif/ioctl.h>
 #include <nvif/class.h>
 #include <nvif/cl0002.h>
-#include <nvif/cla06f.h>
 #include <nvif/unpack.h>
 
 #include "nouveau_drv.h"
 #include "nouveau_dma.h"
+#include "nouveau_exec.h"
 #include "nouveau_gem.h"
 #include "nouveau_chan.h"
 #include "nouveau_abi16.h"
 #include "nouveau_vmm.h"
+#include "nouveau_sched.h"
 
 static struct nouveau_abi16 *
 nouveau_abi16(struct drm_file *file_priv)
@@ -45,23 +46,9 @@ nouveau_abi16(struct drm_file *file_priv)
 		struct nouveau_abi16 *abi16;
 		cli->abi16 = abi16 = kzalloc(sizeof(*abi16), GFP_KERNEL);
 		if (cli->abi16) {
-			struct nv_device_v0 args = {
-				.device = ~0ULL,
-			};
-
+			abi16->cli = cli;
 			INIT_LIST_HEAD(&abi16->channels);
-
-			/* allocate device object targeting client's default
-			 * device (ie. the one that belongs to the fd it
-			 * opened)
-			 */
-			if (nvif_device_init(&cli->base.object, 0, NV_DEVICE,
-					     &args, sizeof(args),
-					     &abi16->device) == 0)
-				return cli->abi16;
-
-			kfree(cli->abi16);
-			cli->abi16 = NULL;
+			INIT_LIST_HEAD(&abi16->objects);
 		}
 	}
 	return cli->abi16;
@@ -81,11 +68,72 @@ nouveau_abi16_get(struct drm_file *file_priv)
 int
 nouveau_abi16_put(struct nouveau_abi16 *abi16, int ret)
 {
-	struct nouveau_cli *cli = (void *)abi16->device.object.client;
+	struct nouveau_cli *cli = abi16->cli;
 	mutex_unlock(&cli->mutex);
 	return ret;
 }
 
+/* Tracks objects created via the DRM_NOUVEAU_NVIF ioctl.
+ *
+ * The only two types of object that userspace ever allocated via this
+ * interface are 'device', in order to retrieve basic device info, and
+ * 'engine objects', which instantiate HW classes on a channel.
+ *
+ * The remainder of what used to be available via DRM_NOUVEAU_NVIF has
+ * been removed, but these object types need to be tracked to maintain
+ * compatibility with userspace.
+ */
+struct nouveau_abi16_obj {
+	enum nouveau_abi16_obj_type {
+		DEVICE,
+		ENGOBJ,
+	} type;
+	u64 object;
+
+	struct nvif_object engobj;
+
+	struct list_head head; /* protected by nouveau_abi16.cli.mutex */
+};
+
+static struct nouveau_abi16_obj *
+nouveau_abi16_obj_find(struct nouveau_abi16 *abi16, u64 object)
+{
+	struct nouveau_abi16_obj *obj;
+
+	list_for_each_entry(obj, &abi16->objects, head) {
+		if (obj->object == object)
+			return obj;
+	}
+
+	return NULL;
+}
+
+static void
+nouveau_abi16_obj_del(struct nouveau_abi16_obj *obj)
+{
+	list_del(&obj->head);
+	kfree(obj);
+}
+
+static struct nouveau_abi16_obj *
+nouveau_abi16_obj_new(struct nouveau_abi16 *abi16, enum nouveau_abi16_obj_type type, u64 object)
+{
+	struct nouveau_abi16_obj *obj;
+
+	obj = nouveau_abi16_obj_find(abi16, object);
+	if (obj)
+		return ERR_PTR(-EEXIST);
+
+	obj = kzalloc(sizeof(*obj), GFP_KERNEL);
+	if (!obj)
+		return ERR_PTR(-ENOMEM);
+
+	obj->type = type;
+	obj->object = object;
+	list_add_tail(&obj->head, &abi16->objects);
+	return obj;
+}
+
 s32
 nouveau_abi16_swclass(struct nouveau_drm *drm)
 {
@@ -114,7 +162,7 @@ static void
 nouveau_abi16_ntfy_fini(struct nouveau_abi16_chan *chan,
 			struct nouveau_abi16_ntfy *ntfy)
 {
-	nvif_object_fini(&ntfy->object);
+	nvif_object_dtor(&ntfy->object);
 	nvkm_mm_free(&chan->heap, &ntfy->node);
 	list_del(&ntfy->head);
 	kfree(ntfy);
@@ -126,11 +174,16 @@ nouveau_abi16_chan_fini(struct nouveau_abi16 *abi16,
 {
 	struct nouveau_abi16_ntfy *ntfy, *temp;
 
-	/* wait for all activity to stop before releasing notify object, which
-	 * may be still in use */
-	if (chan->chan && chan->ntfy)
+	/* Cancel all jobs from the entity's queue. */
+	if (chan->sched)
+		drm_sched_entity_fini(&chan->sched->entity);
+
+	if (chan->chan)
 		nouveau_channel_idle(chan->chan);
 
+	if (chan->sched)
+		nouveau_sched_destroy(&chan->sched);
+
 	/* cleanup notifier state */
 	list_for_each_entry_safe(ntfy, temp, &chan->notifiers, head) {
 		nouveau_abi16_ntfy_fini(chan, ntfy);
@@ -139,7 +192,7 @@ nouveau_abi16_chan_fini(struct nouveau_abi16 *abi16,
 	if (chan->ntfy) {
 		nouveau_vma_del(&chan->ntfy_vma);
 		nouveau_bo_unpin(chan->ntfy);
-		drm_gem_object_put_unlocked(&chan->ntfy->gem);
+		drm_gem_object_put(&chan->ntfy->bo.base);
 	}
 
 	if (chan->heap.block_size)
@@ -147,7 +200,7 @@ nouveau_abi16_chan_fini(struct nouveau_abi16 *abi16,
 
 	/* destroy channel object, all children will be killed too */
 	if (chan->chan) {
-		nouveau_channel_idle(chan->chan);
+		nvif_object_dtor(&chan->ce);
 		nouveau_channel_del(&chan->chan);
 	}
 
@@ -158,29 +211,48 @@ nouveau_abi16_chan_fini(struct nouveau_abi16 *abi16,
 void
 nouveau_abi16_fini(struct nouveau_abi16 *abi16)
 {
-	struct nouveau_cli *cli = (void *)abi16->device.object.client;
+	struct nouveau_cli *cli = abi16->cli;
 	struct nouveau_abi16_chan *chan, *temp;
+	struct nouveau_abi16_obj *obj, *tmp;
+
+	/* cleanup objects */
+	list_for_each_entry_safe(obj, tmp, &abi16->objects, head) {
+		nouveau_abi16_obj_del(obj);
+	}
 
 	/* cleanup channels */
 	list_for_each_entry_safe(chan, temp, &abi16->channels, head) {
 		nouveau_abi16_chan_fini(abi16, chan);
 	}
 
-	/* destroy the device object */
-	nvif_device_fini(&abi16->device);
-
 	kfree(cli->abi16);
 	cli->abi16 = NULL;
 }
 
+static inline int
+getparam_dma_ib_max(struct nvif_device *device)
+{
+	const struct nvif_mclass dmas[] = {
+		{ NV03_CHANNEL_DMA, 0 },
+		{ NV10_CHANNEL_DMA, 0 },
+		{ NV17_CHANNEL_DMA, 0 },
+		{ NV40_CHANNEL_DMA, 0 },
+		{}
+	};
+
+	return nvif_mclass(&device->object, dmas) < 0 ? NV50_DMA_IB_MAX : 0;
+}
+
 int
 nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)
 {
 	struct nouveau_cli *cli = nouveau_cli(file_priv);
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nvif_device *device = &drm->client.device;
-	struct nvkm_gr *gr = nvxx_gr(device);
+	struct nvkm_device *nvkm_device = nvxx_device(drm);
+	struct nvkm_gr *gr = nvxx_gr(drm);
 	struct drm_nouveau_getparam *getparam = data;
+	struct pci_dev *pdev = to_pci_dev(dev->dev);
 
 	switch (getparam->param) {
 	case NOUVEAU_GETPARAM_CHIPSET_ID:
@@ -188,13 +260,13 @@ nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)
 		break;
 	case NOUVEAU_GETPARAM_PCI_VENDOR:
 		if (device->info.platform != NV_DEVICE_INFO_V0_SOC)
-			getparam->value = dev->pdev->vendor;
+			getparam->value = pdev->vendor;
 		else
 			getparam->value = 0;
 		break;
 	case NOUVEAU_GETPARAM_PCI_DEVICE:
 		if (device->info.platform != NV_DEVICE_INFO_V0_SOC)
-			getparam->value = dev->pdev->device;
+			getparam->value = pdev->device;
 		else
 			getparam->value = 0;
 		break;
@@ -205,7 +277,7 @@ nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)
 		case NV_DEVICE_INFO_V0_PCIE: getparam->value = 2; break;
 		case NV_DEVICE_INFO_V0_SOC : getparam->value = 3; break;
 		case NV_DEVICE_INFO_V0_IGP :
-			if (!pci_is_pcie(dev->pdev))
+			if (!pci_is_pcie(pdev))
 				getparam->value = 1;
 			else
 				getparam->value = 2;
@@ -214,6 +286,7 @@ nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)
 			WARN_ON(1);
 			break;
 		}
+		break;
 	case NOUVEAU_GETPARAM_FB_SIZE:
 		getparam->value = drm->gem.vram_available;
 		break;
@@ -235,6 +308,23 @@ nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)
 	case NOUVEAU_GETPARAM_GRAPH_UNITS:
 		getparam->value = nvkm_gr_units(gr);
 		break;
+	case NOUVEAU_GETPARAM_EXEC_PUSH_MAX: {
+		int ib_max = getparam_dma_ib_max(device);
+
+		getparam->value = nouveau_exec_push_max_from_ib_max(ib_max);
+		break;
+	}
+	case NOUVEAU_GETPARAM_VRAM_BAR_SIZE:
+		getparam->value = nvkm_device->func->resource_size(nvkm_device, NVKM_BAR1_FB);
+		break;
+	case NOUVEAU_GETPARAM_VRAM_USED: {
+		struct ttm_resource_manager *vram_mgr = ttm_manager_type(&drm->ttm.bdev, TTM_PL_VRAM);
+		getparam->value = (u64)ttm_resource_manager_usage(vram_mgr);
+		break;
+	}
+	case NOUVEAU_GETPARAM_HAS_VMA_TILEMODE:
+		getparam->value = 1;
+		break;
 	default:
 		NV_PRINTK(dbg, cli, "unknown parameter %lld\n", getparam->param);
 		return -EINVAL;
@@ -244,12 +334,6 @@ nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)
 }
 
 int
-nouveau_abi16_ioctl_setparam(ABI16_IOCTL_ARGS)
-{
-	return -EINVAL;
-}
-
-int
 nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)
 {
 	struct drm_nouveau_channel_alloc *init = data;
@@ -257,8 +341,8 @@ nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
 	struct nouveau_abi16_chan *chan;
-	struct nvif_device *device;
-	u64 engine;
+	struct nvif_device *device = &cli->device;
+	u64 engine, runm;
 	int ret;
 
 	if (unlikely(!abi16))
@@ -267,33 +351,49 @@ nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)
 	if (!drm->channel)
 		return nouveau_abi16_put(abi16, -ENODEV);
 
-	device = &abi16->device;
+	/* If uvmm wasn't initialized until now disable it completely to prevent
+	 * userspace from mixing up UAPIs.
+	 *
+	 * The client lock is already acquired by nouveau_abi16_get().
+	 */
+	__nouveau_cli_disable_uvmm_noinit(cli);
+
+	engine = NV_DEVICE_HOST_RUNLIST_ENGINES_GR;
 
 	/* hack to allow channel engine type specification on kepler */
 	if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 		if (init->fb_ctxdma_handle == ~0) {
 			switch (init->tt_ctxdma_handle) {
-			case 0x01: engine = NV_DEVICE_INFO_ENGINE_GR    ; break;
-			case 0x02: engine = NV_DEVICE_INFO_ENGINE_MSPDEC; break;
-			case 0x04: engine = NV_DEVICE_INFO_ENGINE_MSPPP ; break;
-			case 0x08: engine = NV_DEVICE_INFO_ENGINE_MSVLD ; break;
-			case 0x30: engine = NV_DEVICE_INFO_ENGINE_CE    ; break;
+			case NOUVEAU_FIFO_ENGINE_GR:
+				engine = NV_DEVICE_HOST_RUNLIST_ENGINES_GR;
+				break;
+			case NOUVEAU_FIFO_ENGINE_VP:
+				engine = NV_DEVICE_HOST_RUNLIST_ENGINES_MSPDEC;
+				break;
+			case NOUVEAU_FIFO_ENGINE_PPP:
+				engine = NV_DEVICE_HOST_RUNLIST_ENGINES_MSPPP;
+				break;
+			case NOUVEAU_FIFO_ENGINE_BSP:
+				engine = NV_DEVICE_HOST_RUNLIST_ENGINES_MSVLD;
+				break;
+			case NOUVEAU_FIFO_ENGINE_CE:
+				engine = NV_DEVICE_HOST_RUNLIST_ENGINES_CE;
+				break;
 			default:
 				return nouveau_abi16_put(abi16, -ENOSYS);
 			}
-		} else {
-			engine = NV_DEVICE_INFO_ENGINE_GR;
-		}
 
-		if (engine != NV_DEVICE_INFO_ENGINE_CE)
-			engine = nvif_fifo_runlist(device, engine);
-		else
-			engine = nvif_fifo_runlist_ce(device);
-		init->fb_ctxdma_handle = engine;
-		init->tt_ctxdma_handle = 0;
+			init->fb_ctxdma_handle = 0;
+			init->tt_ctxdma_handle = 0;
+		}
 	}
 
-	if (init->fb_ctxdma_handle == ~0 || init->tt_ctxdma_handle == ~0)
+	if (engine != NV_DEVICE_HOST_RUNLIST_ENGINES_CE)
+		runm = nvif_fifo_runlist(device, engine);
+	else
+		runm = nvif_fifo_runlist_ce(device);
+
+	if (!runm || init->fb_ctxdma_handle == ~0 || init->tt_ctxdma_handle == ~0)
 		return nouveau_abi16_put(abi16, -EINVAL);
 
 	/* allocate "abi16 channel" data and make up a handle for it */
@@ -305,18 +405,29 @@ nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)
 	list_add(&chan->head, &abi16->channels);
 
 	/* create channel object and initialise dma and fence management */
-	ret = nouveau_channel_new(drm, device, init->fb_ctxdma_handle,
-				  init->tt_ctxdma_handle, false, &chan->chan);
+	ret = nouveau_channel_new(cli, false, runm, init->fb_ctxdma_handle,
+				  init->tt_ctxdma_handle, &chan->chan);
 	if (ret)
 		goto done;
 
+	/* If we're not using the VM_BIND uAPI, we don't need a scheduler.
+	 *
+	 * The client lock is already acquired by nouveau_abi16_get().
+	 */
+	if (nouveau_cli_uvmm(cli)) {
+		ret = nouveau_sched_create(&chan->sched, drm, drm->sched_wq,
+					   chan->chan->chan.gpfifo.max);
+		if (ret)
+			goto done;
+	}
+
 	init->channel = chan->chan->chid;
 
 	if (device->info.family >= NV_DEVICE_INFO_V0_TESLA)
 		init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM |
 					NOUVEAU_GEM_DOMAIN_GART;
 	else
-	if (chan->chan->push.buffer->bo.mem.mem_type == TTM_PL_VRAM)
+	if (chan->chan->push.buffer->bo.resource->mem_type == TTM_PL_VRAM)
 		init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM;
 	else
 		init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_GART;
@@ -329,21 +440,48 @@ nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)
 		init->nr_subchan = 2;
 	}
 
+	/* Workaround "nvc0" gallium driver using classes it doesn't allocate on
+	 * Kepler and above.  NVKM no longer always sets CE_CTX_VALID as part of
+	 * channel init, now we know what that stuff actually is.
+	 *
+	 * Doesn't matter for Kepler/Pascal, CE context stored in NV_RAMIN.
+	 *
+	 * Userspace was fixed prior to adding Ampere support.
+	 */
+	switch (device->info.family) {
+	case NV_DEVICE_INFO_V0_VOLTA:
+		ret = nvif_object_ctor(&chan->chan->user, "abi16CeWar", 0, VOLTA_DMA_COPY_A,
+				       NULL, 0, &chan->ce);
+		if (ret)
+			goto done;
+		break;
+	case NV_DEVICE_INFO_V0_TURING:
+		ret = nvif_object_ctor(&chan->chan->user, "abi16CeWar", 0, TURING_DMA_COPY_A,
+				       NULL, 0, &chan->ce);
+		if (ret)
+			goto done;
+		break;
+	default:
+		break;
+	}
+
 	/* Named memory object area */
 	ret = nouveau_gem_new(cli, PAGE_SIZE, 0, NOUVEAU_GEM_DOMAIN_GART,
 			      0, 0, &chan->ntfy);
 	if (ret == 0)
-		ret = nouveau_bo_pin(chan->ntfy, TTM_PL_FLAG_TT, false);
+		ret = nouveau_bo_pin(chan->ntfy, NOUVEAU_GEM_DOMAIN_GART,
+				     false);
 	if (ret)
 		goto done;
 
 	if (device->info.family >= NV_DEVICE_INFO_V0_TESLA) {
-		ret = nouveau_vma_new(chan->ntfy, &cli->vmm, &chan->ntfy_vma);
+		ret = nouveau_vma_new(chan->ntfy, chan->chan->vmm,
+				      &chan->ntfy_vma);
 		if (ret)
 			goto done;
 	}
 
-	ret = drm_gem_handle_create(file_priv, &chan->ntfy->gem,
+	ret = drm_gem_handle_create(file_priv, &chan->ntfy->bo.base,
 				    &init->notifier_handle);
 	if (ret)
 		goto done;
@@ -369,44 +507,6 @@ nouveau_abi16_chan(struct nouveau_abi16 *abi16, int channel)
 }
 
 int
-nouveau_abi16_usif(struct drm_file *file_priv, void *data, u32 size)
-{
-	union {
-		struct nvif_ioctl_v0 v0;
-	} *args = data;
-	struct nouveau_abi16_chan *chan;
-	struct nouveau_abi16 *abi16;
-	int ret = -ENOSYS;
-
-	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) {
-		switch (args->v0.type) {
-		case NVIF_IOCTL_V0_NEW:
-		case NVIF_IOCTL_V0_MTHD:
-		case NVIF_IOCTL_V0_SCLASS:
-			break;
-		default:
-			return -EACCES;
-		}
-	} else
-		return ret;
-
-	if (!(abi16 = nouveau_abi16(file_priv)))
-		return -ENOMEM;
-
-	if (args->v0.token != ~0ULL) {
-		if (!(chan = nouveau_abi16_chan(abi16, args->v0.token)))
-			return -EINVAL;
-		args->v0.object = nvif_handle(&chan->chan->user);
-		args->v0.owner  = NVIF_IOCTL_V0_OWNER_ANY;
-		return 0;
-	}
-
-	args->v0.object = nvif_handle(&abi16->device.object);
-	args->v0.owner  = NVIF_IOCTL_V0_OWNER_ANY;
-	return 0;
-}
-
-int
 nouveau_abi16_ioctl_channel_free(ABI16_IOCTL_ARGS)
 {
 	struct drm_nouveau_channel_free *req = data;
@@ -430,7 +530,6 @@ nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS)
 	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
 	struct nouveau_abi16_chan *chan;
 	struct nouveau_abi16_ntfy *ntfy;
-	struct nvif_client *client;
 	struct nvif_sclass *sclass;
 	s32 oclass = 0;
 	int ret, i;
@@ -440,7 +539,6 @@ nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS)
 
 	if (init->handle == ~0)
 		return nouveau_abi16_put(abi16, -EINVAL);
-	client = abi16->device.object.client;
 
 	chan = nouveau_abi16_chan(abi16, init->channel);
 	if (!chan)
@@ -505,10 +603,8 @@ nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS)
 
 	list_add(&ntfy->head, &chan->notifiers);
 
-	client->route = NVDRM_OBJECT_ABI16;
-	ret = nvif_object_init(&chan->chan->user, init->handle, oclass,
-			       NULL, 0, &ntfy->object);
-	client->route = NVDRM_OBJECT_NVIF;
+	ret = nvif_object_ctor(&chan->chan->user, "abi16EngObj", init->handle,
+			       oclass, NULL, 0, &ntfy->object);
 
 	if (ret)
 		nouveau_abi16_ntfy_fini(chan, ntfy);
@@ -523,18 +619,17 @@ nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
 	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
 	struct nouveau_abi16_chan *chan;
 	struct nouveau_abi16_ntfy *ntfy;
-	struct nvif_device *device = &abi16->device;
-	struct nvif_client *client;
+	struct nvif_device *device;
 	struct nv_dma_v0 args = {};
 	int ret;
 
 	if (unlikely(!abi16))
 		return -ENOMEM;
+	device = &abi16->cli->device;
 
 	/* completely unnecessary for these chipsets... */
 	if (unlikely(device->info.family >= NV_DEVICE_INFO_V0_FERMI))
 		return nouveau_abi16_put(abi16, -EINVAL);
-	client = abi16->device.object.client;
 
 	chan = nouveau_abi16_chan(abi16, info->channel);
 	if (!chan)
@@ -562,22 +657,18 @@ nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
 	if (drm->agp.bridge) {
 		args.target = NV_DMA_V0_TARGET_AGP;
 		args.access = NV_DMA_V0_ACCESS_RDWR;
-		args.start += drm->agp.base + chan->ntfy->bo.offset;
-		args.limit += drm->agp.base + chan->ntfy->bo.offset;
+		args.start += drm->agp.base + chan->ntfy->offset;
+		args.limit += drm->agp.base + chan->ntfy->offset;
 	} else {
 		args.target = NV_DMA_V0_TARGET_VM;
 		args.access = NV_DMA_V0_ACCESS_RDWR;
-		args.start += chan->ntfy->bo.offset;
-		args.limit += chan->ntfy->bo.offset;
+		args.start += chan->ntfy->offset;
+		args.limit += chan->ntfy->offset;
 	}
 
-	client->route = NVDRM_OBJECT_ABI16;
-	client->super = true;
-	ret = nvif_object_init(&chan->chan->user, info->handle,
+	ret = nvif_object_ctor(&chan->chan->user, "abi16Ntfy", info->handle,
 			       NV_DMA_IN_MEMORY, &args, sizeof(args),
 			       &ntfy->object);
-	client->super = false;
-	client->route = NVDRM_OBJECT_NVIF;
 	if (ret)
 		goto done;
 
@@ -617,3 +708,183 @@ nouveau_abi16_ioctl_gpuobj_free(ABI16_IOCTL_ARGS)
 
 	return nouveau_abi16_put(abi16, ret);
 }
+
+static int
+nouveau_abi16_ioctl_mthd(struct nouveau_abi16 *abi16, struct nvif_ioctl_v0 *ioctl, u32 argc)
+{
+	struct nouveau_cli *cli = abi16->cli;
+	struct nvif_ioctl_mthd_v0 *args;
+	struct nouveau_abi16_obj *obj;
+	struct nv_device_info_v0 *info;
+
+	if (ioctl->route || argc < sizeof(*args))
+		return -EINVAL;
+	args = (void *)ioctl->data;
+	argc -= sizeof(*args);
+
+	obj = nouveau_abi16_obj_find(abi16, ioctl->object);
+	if (!obj || obj->type != DEVICE)
+		return -EINVAL;
+
+	if (args->method != NV_DEVICE_V0_INFO ||
+	    argc != sizeof(*info))
+		return -EINVAL;
+
+	info = (void *)args->data;
+	if (info->version != 0x00)
+		return -EINVAL;
+
+	info = &cli->device.info;
+	memcpy(args->data, info, sizeof(*info));
+	return 0;
+}
+
+static int
+nouveau_abi16_ioctl_del(struct nouveau_abi16 *abi16, struct nvif_ioctl_v0 *ioctl, u32 argc)
+{
+	struct nouveau_abi16_obj *obj;
+
+	if (ioctl->route || argc)
+		return -EINVAL;
+
+	obj = nouveau_abi16_obj_find(abi16, ioctl->object);
+	if (obj) {
+		if (obj->type == ENGOBJ)
+			nvif_object_dtor(&obj->engobj);
+		nouveau_abi16_obj_del(obj);
+	}
+
+	return 0;
+}
+
+static int
+nouveau_abi16_ioctl_new(struct nouveau_abi16 *abi16, struct nvif_ioctl_v0 *ioctl, u32 argc)
+{
+	struct nvif_ioctl_new_v0 *args;
+	struct nouveau_abi16_chan *chan;
+	struct nouveau_abi16_obj *obj;
+	int ret;
+
+	if (argc < sizeof(*args))
+		return -EINVAL;
+	args = (void *)ioctl->data;
+	argc -= sizeof(*args);
+
+	if (args->version != 0)
+		return -EINVAL;
+
+	if (!ioctl->route) {
+		if (ioctl->object || args->oclass != NV_DEVICE)
+			return -EINVAL;
+
+		obj = nouveau_abi16_obj_new(abi16, DEVICE, args->object);
+		if (IS_ERR(obj))
+			return PTR_ERR(obj);
+
+		return 0;
+	}
+
+	chan = nouveau_abi16_chan(abi16, ioctl->token);
+	if (!chan)
+		return -EINVAL;
+
+	obj = nouveau_abi16_obj_new(abi16, ENGOBJ, args->object);
+	if (IS_ERR(obj))
+		return PTR_ERR(obj);
+
+	ret = nvif_object_ctor(&chan->chan->user, "abi16EngObj", args->handle, args->oclass,
+			       NULL, 0, &obj->engobj);
+	if (ret)
+		nouveau_abi16_obj_del(obj);
+
+	return ret;
+}
+
+static int
+nouveau_abi16_ioctl_sclass(struct nouveau_abi16 *abi16, struct nvif_ioctl_v0 *ioctl, u32 argc)
+{
+	struct nvif_ioctl_sclass_v0 *args;
+	struct nouveau_abi16_chan *chan;
+	struct nvif_sclass *sclass;
+	int ret;
+
+	if (!ioctl->route || argc < sizeof(*args))
+		return -EINVAL;
+	args = (void *)ioctl->data;
+	argc -= sizeof(*args);
+
+	if (argc != args->count * sizeof(args->oclass[0]))
+		return -EINVAL;
+
+	chan = nouveau_abi16_chan(abi16, ioctl->token);
+	if (!chan)
+		return -EINVAL;
+
+	ret = nvif_object_sclass_get(&chan->chan->user, &sclass);
+	if (ret < 0)
+		return ret;
+
+	for (int i = 0; i < min_t(u8, args->count, ret); i++) {
+		args->oclass[i].oclass = sclass[i].oclass;
+		args->oclass[i].minver = sclass[i].minver;
+		args->oclass[i].maxver = sclass[i].maxver;
+	}
+	args->count = ret;
+
+	nvif_object_sclass_put(&sclass);
+	return 0;
+}
+
+int
+nouveau_abi16_ioctl(struct drm_file *filp, void __user *user, u32 size)
+{
+	struct nvif_ioctl_v0 *ioctl;
+	struct nouveau_abi16 *abi16;
+	u32 argc = size;
+	int ret;
+
+	if (argc < sizeof(*ioctl))
+		return -EINVAL;
+	argc -= sizeof(*ioctl);
+
+	ioctl = kmalloc(size, GFP_KERNEL);
+	if (!ioctl)
+		return -ENOMEM;
+
+	ret = -EFAULT;
+	if (copy_from_user(ioctl, user, size))
+		goto done_free;
+
+	if (ioctl->version != 0x00 ||
+	    (ioctl->route && ioctl->route != 0xff)) {
+		ret = -EINVAL;
+		goto done_free;
+	}
+
+	abi16 = nouveau_abi16_get(filp);
+	if (unlikely(!abi16)) {
+		ret = -ENOMEM;
+		goto done_free;
+	}
+
+	switch (ioctl->type) {
+	case NVIF_IOCTL_V0_SCLASS: ret = nouveau_abi16_ioctl_sclass(abi16, ioctl, argc); break;
+	case NVIF_IOCTL_V0_NEW   : ret = nouveau_abi16_ioctl_new   (abi16, ioctl, argc); break;
+	case NVIF_IOCTL_V0_DEL   : ret = nouveau_abi16_ioctl_del   (abi16, ioctl, argc); break;
+	case NVIF_IOCTL_V0_MTHD  : ret = nouveau_abi16_ioctl_mthd  (abi16, ioctl, argc); break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	nouveau_abi16_put(abi16, 0);
+
+	if (ret == 0) {
+		if (copy_to_user(user, ioctl, size))
+			ret = -EFAULT;
+	}
+
+done_free:
+	kfree(ioctl);
+	return ret;
+}